In 1583, the nineteen-year-old Christopher Marlowe—-with a reputation as a brawler, a womanizer, a genius, and a social upstart at Cambridge University—-is visited by a man representing Marlowe's benefactors. There are rumors of a growing plot against her majesty Queen Elizabeth I, and the Queen's spymaster, Sir Francis Walsingham, has charged young Marlowe with tracking down the truth. The path to that truth seems to run through an enigmatic prisoner held in complete seclusion in a heavily guarded dungeon in Malta. Marlowe must use every bit of his wits, his skills, and his daring to unravel one of the greatest mysteries in history and help uncover and unravel scheme of assassination and invasion, one involving the government of Spain, high ranking English nobles, and even Pope himself.